biothane
The 'biothane' is very strong stuff, got a few teeth marks in mine but no weakness at all and still going strong, been used plenty to a variety of quarry.
Does the new collar have the same electronics inside but minus the replaceable battery,. Any photos available yet?
Don't know anything about the insides matey just that its rechargeable with a ciggy lighter or mains its smaller and is sold with the charger its been tested for a full season and it never missed a beat he has changed the way you turn it off before you had to swipe it off now you hold the magnet on it f